Paulo paid $12.25 For some pencils and pens. He bought 19 more pencils than pens. the pencils cost. 25 cents each and the pens cost$1.25 each. How many pens and pencils did Paulo buy?

The two-way table shows poll results for the number of athletes and non athletes who take the stairs or the elevator at work. Of the people polled, how many take the elevator? Athletes, Stairs 10 Elevator 3 Non Athletes. Stairs 7 Elevator 16

Solve for h C=h+r/2

Given the proportion x/y = 2/5, what ratio completes the equivalent proportion: x/2 = ?/?

The nth term of a quadratic sequence is: n²+2n-4 Work out the first three terms of this sequence.

What is 5 (6p+8) = 30p+7+7

the temperature is - 4°f. A high pressure front increases the temperature to 8°f. by how many degrees did the temperature increases?

2[39 / (16-12*4) + (9+6*3*7]

Find the independent and dependent variables y=x2-24x+3

What is the definition of the determinant

What is the percentage of 0.39